How to Speed Up Firefox With Multi-Process, If It's Not Working By Default

After years of waiting, Mozilla last week launched Firefox 54 for Windows, Mac, Linux, and Android, with multi-process support — a “major improvement” to improve your browsing experience — but many users are still struggling to take advantage of this feature.

Mozilla’s multi-process support in Firefox has been in development for over eight years as part of a project, codenamed Electrolysis or